It was written by Ayase and based on three short stories by Jun Esaka from three one-shot manga: Taizan 5's Hanareta Futari, Yūki Kirishima's Parallel Lane, and Hirusagari Haruno's Owaranai Deuce.
[4] The song was based on three short stories written by Jun Esaka, sourced from three sport-themed one-shot manga: Hanareta Futari (はなれたふたり, lit.
In Parallel Lane, Ren Natsunagi, a former swimmer, lost his right leg due to a traffic accident, making him getting depressed.
[7] Musically, "Butai ni Tatte" is described as a guitar rock track about conflicts, excitements, struggles, and hopes that athletes face in their mind to take a courageous step forward, which compares to their artist career.
[8][7] In Yoasobi's News Watch 9 interview on July 5, 2024, Ayase told that he imagined a slightly lighter shade of blue for the song, expressing "sometimes it is sweat and tears, or the struggle to reach something, which I think is very youthful, regardless of era or age.
[16] Directed by Margt of Perimetron, the animated visual depicts the protagonist keep running with determination, facing forward, difficulties, and setbacks along the way.